NASA just declared that it plans to launch a minute, four-pound, autonomous helicopter along with its 2020 rover mission.
This was the most frequently asked question in the 19th century. At the time, Humans understood only two ways the sun could be generating energy: either it was creating heat and light through gravitational contractions————pulling itself in at the center and emitting energy (in the form of heat that we feel on Earth), therefore getting smaller over time—————or it was literally on fire, like the chemical reaction we see on Earth when we light a match or start a campfire.
The final theory of Professor Stephen Hawking on the origin of the universe, which he…
Diamonds provide the evidence of a lost planet that once roamed our solar system. Study found.